Hot strip furnace reel



July 21, 1953 F. FRIELINGHAUS 2,646,231

HOT ,STRIP FURNACE REEL Filed Oct. 25, 1950 3 Sheets-Sheet 1 /0 @I 2 9 E 2 p /9 4/1 2 15 12' M Q a 3 (Q E e 5 M 16 /5 /6 M A i Q: m mm m 1 Fig.2 3

VENTOR,

ERDINAND HJINGHAUS ATTORNEY July 21, 1953 F. FRIELINGHAUS 3 HOT STRIP FURNACE REEL Filed Oct. 25, 1950 s Sheets-Sheet 2 Fig. 3

Fig.4

2 1 4 A4 1 E /6 v 5 i *5 INVENIOR FERDINAND FRIELINGHAUS & x mxmmmmn 4 6 F. FRIELINGHAUS HOT STRIP FURNACE REEL o 3 SheetsrSheet 3 F lg. 5

July 21, 1953 Filed Oct. 25, 1950 INVENTOR FERDINAND FRIELINGHAUS ATTORNEY Patented July 21, 1953 s, 2,646,231 u .HOTTISTRIP FURNACEZRIEEL "Ferdinandflirielinghaus, portmun'd,Germany Applicationct0ber25 1950, Serial No.'1-91,9'97

- In Germany October 26, 1949 1 irearms. (01.243 78) .The present invention relates to a hot strip winding furnace for rolling millsfor rolling-strips orsheets of steel or non-ferrous metal. l

. In the specification of co-pending; application 7 "forLetters Patent serial No. 98,662; of which I am a co-inventor, there is described a hot strip winding furnacewhich isidesigned symmetrically I in relation to a vertical plane through the winding drum :shaftrsothat 'itisis .poss'ible to run the entering strip entirely. intothe furnace in both directions' of rotation of, the drum and to unwind it out of the furnace insubstantially thesame plane-in-the direction opposite to that of winding in. To this end the winding drum is equipped with similar feeding and winding-in devices on each-side and with a reversible drive. The apparatus in accordance with the co-pending application aforesaid has one or two continuous saddle-shaped running-in channels. the saddles of which are directed towards'the shaft of the drum. This design of thewinding drum makes it possible to introduce the strip only when th drum is stationary. According to the. present invention the winding drum, constructed in-principle as described above, is so designed that winding on of the strip is also possible whilst the drum is rotating. To this end, according to the invention, the drum is designed without a slot and is surrounded by resilient pressing devices which press the strip brought up to the periphery of the drum by the swivelling guide against the strip until frictional grip'is produced.

This process is further aided by guiding means,

for example swivelling guides arranged in pairs and engaging comb-wise with each other and by a special design of the guides for the feeding of the strip, according to which they are wedge for example burners. *The furnace is arranged ly, when winding the strip onto the upper partzof the drum periphery and unwinding in theropposite-direction from the lower part oftheldrum periphery, in case where the strip has to be.-.conveyed to a following train of rolls.

Fig. 5.-shows thewinding furnace in elevation I seen in axial "direction of the drum: and

i Fig, 6 a section along the axis ofthefurnace. In the figures I denotesthecasing of the furnace and 2 the means for heating the furnace,

above the roller train 3 with the 'rolls4.

Balance bridges 5 directthe material reeled in V respectively reeled out to and from vthe'rol1s-4.

;The windinggdrum: rotates around-the shaft '1. Around the drum there aresuitably. arranged the lower lateral pressure rolls 9 and the upper lateral pressure rolls l-0 resiliently slidable independently from another in slots 8. Vertically below the axis of the drum 6 the pressure roll I2 is arranged also said pressure roll being vertically slidable in the slot ll. l3 and l4respectively are the guides which are symmetrically provided on both sides of the arrangement as a whole and which can be swung downwards fiapwise and I5, I6 denote the driving rolls.

The additional guides or arms I! which are provided,intermesh comb-wise with each other and partially surround the drum periphery at a slight distance therefrom. The relatively wide concave surfaces of the flap guides, which are designed as further guiding means and which are turned towards the periphery of. the drum, are

' indicated at I8.

shaped with their widened faces directed towards the periphery of the drum.

One constructional form according to the invention is illustrated in the accompanying drawings in which:

Fig. 1 is a diagrammatic view of the winding furnace showing the position of the parts at the moment when the winding on begins, and

Fig. 2 is a similar view showing the position of the parts at the end of the winding on, namely,

when winding the strip onto the lower part of the drum periphery and unwinding from the lower part of the drum periphery in the direction of winding on;

Figs. 3 and 4 are similar views to Figs. 1 and 2 showing the position of therparts at thecommencement and end of the winding on respective- Pivotally mounted onthe lower lateral rolls 9 are bodies I 9 said bodies serving at the same time as guiding and stripping devices. These bodies l9 are concavely shaped on their side opposite the drum and'are providedwith a surface of concave curvature also opposite to the entrance channel. I

Fig. 5 shows in detail the lever systemfor operating the resiliently slidable pressure rollsv9, H] which are operated by means of pistons slidable in hydraulic cylinders 20. Said pistons actover piston rods 2| to the angle levers 22 and therebyshift against the action of the springs 23 the rolls 9 and I0. As shown for both the lateral pressure rolls 9, I0 only one spring 23 is necessary. The lower of these rolls 9 can besides be operated by a piston sliding in the cylinder 24 by means of the piston rod 25,. The purpose of thisarrangement is soto be able to independently from the upper roll bring the lower of the lateral rolls 9 out of action in the case of reeling on of the strip running in, from the upper or lower part of the drum periphery;

The use of pressure rollers is known in itself both for the driven drums and also for drums made to rotate by the running onto them of the strip. By the use of such pressuredevices however in the winding furnaces described a considerable advance is achieved as compared with.

the known constructional forms, namely, a multiple possibility of winding from below and from above, both in winding on and in winding off. The new winding drum is particularly suitable for thin strips which can more easily be bent round.

I claim:

1. A hot strip reeling device comprising a reeling drum having an imperforate circumferential surface, spring loaded means for guiding the strip onto said drums and arranged symmetrically on both sides of the drum and providing a channel surrounding a substantial part of the drum for guiding the incoming strip at least until its free end is directed into the opposite direction said guiding means having upper and lower pressure rollers, arms on the upper rollers extending lengthwise and curved to conform to the contour 4 of the drum, said arms being disposed in side by side arrangement in comb-like fashion.

2. A hot strip reeling device as claimed in claim 1, comprising bodies pivoted respectively on the lower pressure .rollers and adapted to be swung about their axes into positions to form guiding means, curved surfaces on said Ibodies adjacent the drum forming parts of the guide channel or when disposed in a position closer to the drum, to serve as stripping members.

3. A hot strip reeling device in accordance with claim 2, comprising means providing horizontal slots and a vertical slot, arranged radially with respect to the reeling drum, and means for mounting the pressure rollers in said slots respectively for movement toward and away from the drum.

4. A hot strip reeling device in accordance with claim 3, comprising tiltable means for directing the strip to the surface of the drum thereby to direct the incoming strip alternatively to the lower and to the upper portion or" the drum surface, said til-table means in the latter position cooperating with the circumference of the drum to form parts of the guide channel for the strip.

FERDINAND FRIELINGHAUS.

References Cited in the file of this patent 1 UNITED STATES PATENTS Number Name Date 1,882,219 Harwood et a1 Oct. 11, 1932 1,935,092 Iversen et a1 Nov. 14, 1933 1,957,009 Broemel May 1 1934 2,207,832 Spellacy July 16, 1940 

